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NS 435 Unit 2: Impact of Ecological Changes on Agriculture. Lei Wang, Ph.D. How Ecological Changes Affect Agriculture/Food Production? Short-Term Effects Long-Term Effects How Modern Agriculture Impacts the Climate? Alternative Solutions/Opportunities?. Outline.
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Lei Wang, Ph.D.
According to Siikamaki, (2006) “Agriculture is frequently discussed in the context of climate change: not only is agriculture vulnerable to climate change, it is also part of the problem and its potential solutions.”
-Siikamaki, Juha. (2006). Climate Change and U.S. Agriculture. Examining the Connections. Environment, pg(s). 36-49.Food for Thought
“Human activities have altered the global climate.
During the 20th century, the global average surface
T increased 0.6 C and global sea level
increased 15 to 20 cm.”
“… human influences will continue to change Earth’s climate throughout the 21st century. The global average T will rise another 1.1 to 5.4 C by 2100. Which will result in continued increases in sea level and overall rainfall.”
- however, with continued temp increase (esp. Southern regions) some crops may not adapt.
- Northern regions may benefit most (since tend to be cooler.) e.g. longer growing season opportunity.
-- Possible to grow new crops/different crops.Short-Term Effects of Climate Change on Agriculture
A vast majority of climate scientists agree that Earth will warm along with increasing greenhouse gases. However, the effects will be far more varied than a simple and uniform warming over the entire planet.Earth’s Future Climate
Translate temperature changes from a model into trends that affect people's everyday lives. A 2004 NCAR study found that, by the period 2080-99, American and European heat waves will be more severe, frequent, and long-lasting.Earth’s Future Climate
Another related study found that frost days will decline in many parts of the globe by 2080-99. The largest decreases are projected across the northwest parts of Europe and North America.
GHG emissions (burning of fossil fuels, manure, food transportation– e.g.)
Executive Summary: The Effects of Climate Change on Agriculture, Land Resources, Water Resources, and Biodiversity, pages 1-10.
Earth’s Future Climate: http://www.ncar.ucar.edu/research/climate/future.phpReferences